Emerson MVME2500 Manuel D’Utilisation
Functional Description
MVME2500 Installation and Use (6806800L01H)
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The RTM I2C address can be configured by the user and should not contain duplicate addresses
to avoid conflict. For more information, see
to avoid conflict. For more information, see
4.14 Reset/Control FPGA
The FPGA provides the following functions:
Power control and fault detection
Reset sequence and reset management
Status and control registers
Miscellaneous control logic
Watchdog timer
32-bit Tick Timer
Clock generator
Switch decoder and LED controller
4.15 Power Management
The MVME2500 backplane is utilized to derive +3.3V, +2.5V, +1.8V, +1.5V, +1.2V, +1.05V
voltage rail. Each voltage rail is controlled by the FPGA through an enable pin of the regulator,
while the output is monitored through power good signal. If a voltage rail fails. the FPGA will
disable each supply. To restart the system, the chassis power switch must be powercycled.
voltage rail. Each voltage rail is controlled by the FPGA through an enable pin of the regulator,
while the output is monitored through power good signal. If a voltage rail fails. the FPGA will
disable each supply. To restart the system, the chassis power switch must be powercycled.
4.15.1 Onboard Voltage Supply Requirement
The onboard power supply is considered to be out of regulation if the output voltage level is
below the minimum required power or goes beyond the maximum.
below the minimum required power or goes beyond the maximum.
Table 4-1 Voltage Supply Requirement
Voltage Rail
Voltage Rail Requirement
Minimum
Maximum
+3.3 V
3.15 V
3.45 V